/// <summary>
/// careful, can't return null, so give MinValue
/// </summary>
/// <param name="xmlNode"></param>
/// <param name="attributeName"></param>
/// <param name="defaultDateTime">the time to use if this attribute isn't found</param>
/// <returns></returns>
private DateTime GetOptionalDate(XmlNode xmlNode, string attributeName, DateTime defaultDateTime)
{
if (xmlNode.Attributes != null)
{
XmlAttribute attr = xmlNode.Attributes[attributeName];
if (attr == null)
{
return(defaultDateTime);
}
/* if the incoming data lacks a time, we'll have a kind of 'unspecified', else utc */
try
{
return(Extensible.ParseDateTimeCorrectly(attr.Value));
}
catch (Exception e)
{
NotifyFormatError(e); // not a fatal error
}
}
return(defaultDateTime);
}
